Giant sacral meningeal diverticulum containing a thickened filum with lipoma in an adult with spinal cord tethering. Case report and review of the literature.
An unusual case of a patient with a giant intrasacral meningeal diverticulum and spinal cord tethering with a thickened filum is presented. Instead of being empty as is typical, the meningeal diverticulum in this case contained a segment of the thickened tethering filum, which entered from the thecal sac through an ostium. A search of the literature revealed no prior description of a meningeal diverticulum containing a portion of tethered filum or any other structure. Only 2 previous cases of intrasacral meningeal cyst and spinal cord tethering with a thickened filum were found, both in the non-English literature.
Feigenbaum
Frank
F
Midwest Neurosurgery Associates, Kansas City, Missouri 64132, USA. frankf543@aol.com
D002420:Cauda Equina; D004240:Diverticulum / Q000473:pathology*; D005260:Female; D006801:Humans; D008067:Lipoma / Q000473:pathology*; D008578:Meninges; D008588:Meningocele / Q000473:pathology; D008875:Middle Aged; D010524:Peripheral Nervous System Neoplasms / Q000473:pathology*; D012447:Sacrum; D013116:Spinal Cord / Q000473:pathology*